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Potential divider and its Thevenin's circuit.

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(a) A potential divider is to supply a voltage of 10 V, constant to better than 10%, into a load which can draw current up to a maximum of 50 mA. Design a potential divider for a 40 V battery (internal resistance 1 ohm) that would guarantee these conditions.
(b) Determine Thevenin's circuit for the circuit of (a)

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Solution Summary

A potential divider circuit is designed to give power to a load resistance and its Thevenin equivalent circuit is shown.

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Please see the attached file.

(a) A potential divider is to supply a voltage of 10 V, constant to better than 10%, into a load which can draw current up to a maximum of 50mA. Design a potential divider for a 40 V battery (internal resistance 1 ohm) that would guarantee these conditions.
(b) Determine Thevenin's circuit for the circuit of (a)

(a) The potential divider supply circuit is shown in the diagram. For any load RL connected parallel to R2 the current and hence the voltage across R2 will decrease. For very high resistances the decrease in the voltage across R2 (supply voltage) will be very small.
When no load is connected, (RL = infinite) R1, R2, and r are in series and hence equivalent resistance of the circuit will be
R ...

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